Cripe Hyper Audio Filter | Audio-Digital.net

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Four State QRP Group

http://www.4sqrp.com/HiPerMite.php

The HI-PER-MITE is a HIgh-PERformance SMALL audio filter. It is designed to be very versatile, have low parts count, be inexpensive, yet provide outstanding performance. This is a flexible design that can be used as a stand-alone unit …

Audio Filters & Audio Processors - Far Circuits

https://farcircuits.net/Audio_Processors.html

74 rows

FAR CIRCUITS

http://farcircuits.net/CATALOG.doc

73’s nov96 magical audio filter using mc1458 &max295 ic1s by jim pepper $7.00. 73’s may94 cripe hyper audio filter $5.50. 73’s dec93 deluxe comm audio by curry $8.50. 73’s jul93 universal speech processor $5.25. 73’s feb93 switched capacitor audio filter tone processor $5.00

THE HI-PER-MITE ACTIVE AUDIO CW BANDPASS FILTER IS …

http://qrqcwnet.ning.com/profiles/blogs/the-hi-per-mite-active-audio-cw-bandpass-filter-is-awesome

The HI-PER-MITE filter is used in the second half of the file as a narrow active bandpass filter centered at 700 hertz and does a great job of reducing (@ -30db) the other two cw signals of 400 hertz and 1000 hertz. This test was setup to closely represent a typical nearby interfering signal (s) that you might hear when on the air with other cw ...

A Low-Pass RC Audio Filter

http://wa0itp.com/rclowpass.html

A Low-Pass RC Audio Filter Click for full size image. After several long portable sessions with noisy bands and a sidetone rich with harmonics, I decided to try a low pass audio filter to reduce ear fatigue. Wanting to do something simple and quick, I turned to a resistor/capacitor design, they are so simple I had to give one a try.

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